Process of purifying illuminating-gas



(No Model.)

J. WIESENDER. PROGESS 0F PURIFYING ILLUMINATING GAS.

Patented Mar. 1, 1.892.

Inuanfur.

WI'Tn E55 115 THE Roms Pa -ens 0b., FHOfD-LlYf49-, WASHINGT U ITED STATES ATENT' FFICE.

JULIUS W'IESENDER, OF SAN FRANCISCO, CALIFORNIA.

PROCESS OF PURlFYl-NG lLLUMlNATlNG-GAS.

SPECIFICATION forming part of Letters Patent No, 469,847, dated March 1, 1892.

Application filed April 25, 1890.

To all whom it may concern: V

Be it known that I, JULIUS Wrnsnnonn, a citizen of the United States, residing in the city and county of San Francisco, and State of California, have invented certain new and useful Improvements in the Process of Purifying Illuminating-Gas, of which the following is a specification.

My invention has relation to an improved process for improving and purifying illuminating-gas; and its novelty will be fully understood from the following description and claims when taken in conjunction with the accompanying drawings, in which Figure 1 isan elevation, partly in section, of an apparatus for carrying out my improved process and Fig. 2 is a detail side elevation of the retort-furnace, which forms a part of the apparatus.

Referring by letter to the said drawings, A indicates a retort-furnace, in which are suitably mounted the retorts B, which may be of the ordinary or any approved construction. Preferably mounted upon or embedded in the upper side of the retort-furnace A is a hydraulic main D, which is provided with a suitable feed or filling pipeIand with cocks J J X for drawing 01f the collected tar and the water when desirable.

Leading from the retorts B at a suitable point therein and extending upwardly are stand-pipes O, which are preferably provided at their upper ends with dip branches O which extend downwardly through the top of the hydraulic main and preferably extend beneath the surface of the water therein. By reason of the hydraulic main D being situated upon the retort-furnace A it will be readily seen that the water in said main will be kept at an even high heat, which heating of the water is essential to the accomplishment of my improved process, as will be presently understood.

At a suitable point with respect to the hydraulic main I arrange a cold-water tank G which is connected to the hydraulic main by a pipeE and is provided with a suitable feedwater pipe I and cocks J J X for drawing OK the water when desirable. By passing the gas from the retorts through the hydraulic Serial No. 349,515- (No model.)

is surrounded by a Water-jacket, as illustrated,

to receive the depending wall of the cover G,

whereby the chamber is rendered air-tight.

As illustrated in Fig. 1 of the drawings, the chamber G is divided into two compartments by a vertical partition-wall G which extends from the bottom of the chamber to a point near the top thereof, a sufficient space being afforded between the upper edge of said wall and the top of the chamber for the gas to pass from one compartment into another.

Formed in the top wall of the cold-water tank G'X and in the bottom of the purifyingchamber G is an opening 9 which establishes communication between the said water-tank and the primary compartment of the purifying-chamber, as better illustrated in Fig. 1 of the drawings.

Arranged at a suitable distance apart in the respective compartments of the chamber G are open-work shelves ortrays I-I, upon which is placed a suitable purifyingagent (indicatedby L) for gathering and retaining the impurities of the gas which passes through said shelves.

The purifying agent which I prefer to employ upon the shelves or trays H, and which will be made the subject of another application for Letters Patent, is composed of a mixture of iron planings,borings, or turnings and wet sand in substantially the proportion of one part of wet sand to sixteen parts of the iron shavings or turnings. compound serves to gather and retain the impurities of the gas without absorbing such impurities, whereby it will be seen that when removed from the purifying-chamber the ingredients of the agent may be readily cleansed by the application of heat and water without being consumed, after which they may be re ters Patent.

placed in the trays-or shelves.

For the sake of economy I prefer to cleanse the purifying compound by placing the same in the retorts, whereby it will be seen that a major portion of the tar and other matter clinging'tothe ingredientsof said compound will be converted into gas.

Leading from the secondary compartment of the chamber G at a point adjacent the bottom thereof is a pipe K, which discharges at its opposite end into a suitable gasometer,

as X.

In operation the gas from the retorts B takes through the pipes G into the hot Water in thehydraulic main D, from whenceit passes through the pipe E'into the cold water in the tank G after which it passes up through-the opening q into the primary compartment of the purifying-chamber G, and from thence.

intothe secondary compartment of said chamher, from which it is conducted to the gasometer.

In the practice of my invention I do not desire to be confined to the manner described of heating the Water in the hydraulic tank, nor do I desire to confine myself to any specific apparatus for carrying out my improved process, although the apparatus illustrated and described is preferable and-willbe made the subject of a future application for Let- I-Iaving described my invention, what I claim, and desire to secure by Letters Patent, is

1. The process of improving and purifying illuminating-gas, consisting in subjecting the same to the action of hot and cold water or other liquid successively, substantially as set forth.

2. The process of improving and purifying illuminating-gas, consisting, first, in passing the gas through hot water; secondly, in passing the gas through cold water, and, thirdly, in passing the gas through a suitable purifier, substantially as set forth.

3. Theprocess ofimproving and purifying illuminating-gas, consisting, first, in passing the gas through hot Water, then through cold water, and *finallythrough a purifyingcompound consisting of iron planings and'sand in about the proportions'stated, substantially as specified.

In testimonythat I claim the foregoing I have hereunto set my hand and seal.

JULIUS WIESENDER. [L. s.]

\Vitnesses:

CHAS. E. KELLY, A. M. CHARLOT. 

